diff --git a/observation/src/filelife/filelife.h b/observation/src/filelife/filelife.h
new file mode 100644
index 0000000000000000000000000000000000000000..814b542617c6048e6cdb963b5624e792543dbaf4
--- /dev/null
+++ b/observation/src/filelife/filelife.h
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
+#ifndef __FILELIFE_H
+#define __FILELIFE_H
+
+#define DNAME_INLINE_LEN	64
+#define TASK_COMM_LEN		16
+
+struct event {
+	char file[DNAME_INLINE_LEN];
+	char task[TASK_COMM_LEN];
+	__u64 delta_ns;
+	pid_t tgid;
+};
+
+#endif